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Finding the Fourth Proportional to 240,889.60, 360,959.10 and 91,048.15

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Solution

The fourth proportional to 240,889.60, 360,959.10 and 91,048.15 is: 136,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,889.60 : 360,959.10 = 91,048.15 : x
  2. Step 2: Convert to fraction form
    240,889.60/360,959.10 = 91,048.15/x
  3. Step 3: Cross multiply
    240,889.60x = 360,959.10 × 91,048.15
  4. Step 4: Simplify right side
    240,889.60x = 32,864,658,280.67
  5. Step 5: Solve for x
    x = 32,864,658,280.67/240,889.60
  6. Step 6: Final answer
    x = 136,430.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.